Chemical Engineering: المرسلات الحديثة
السجلات المعروضة 921 -- 940 من 1172
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Use of DPSIR Framework to Analyze Water Resources in Qatar and Overview of Reverse Osmosis as an Environment Friendly Technology
( John Wiley and Sons Inc. , 2019 , Article Review)Qatar and other countries of Gulf Cooperation Council are among the most water scarce countries in the world and are being characterized as “high‐water risk” countries by Water Resource Institute. Therefore, it is important ... -
Molecular and electronic structure elucidation of Fe2+/Fe3+ complexed chelators used in iron sulphide scale removal in oil and gas wells
( Wiley-Liss Inc. , 2019 , Article)Quantum chemical calculations based on DFT are employed to study the electronic structure and binding affinity of chelators used in the removal of iron sulphide scales. Three chelating agents, EDTA, HEDTA, and DTPA, are ... -
Effect of pH on acidic and basic chelating agents used in the removal of iron sulfide scales: A computational study
( Elsevier B.V. , 2019 , Article)Iron sulfide scale is a major challenge in the upstream section of the oil and gas industry. It is responsible for precipitate formation in tubulars, and it damages equipment. This leads to a loss in production. Mechanical ... -
A technoeconomic assessment of microalgal culture technology implementation for combined wastewater treatment and CO2 mitigation in the Arabian Gulf
( Institution of Chemical Engineers , 2019 , Article)A technoeconomic assessment (TEA) has been conducted of the feasibility of large-scale application of microalgal culture technology (MCT) to the combined mitigation of CO2 emissions from flue gases and nutrient discharges ... -
Probing the effect of combustion controlled surface alloying in silver and copper towards ORR and OER in alkaline medium
( Elsevier B.V. , 2019 , Article)Bi-metallic silver-copper nanoparticles were synthesized using two modes of combustion synthesis, known as Solution Combustion Synthesis (SCS) and Second Wave Combustion Synthesis (SWCS) to enhance surface alloying in Cu ... -
Highly efficient nonenzymatic glucose sensors based on CuO nanoparticles
( Elsevier B.V. , 2019 , Article)In this work, copper nanoparticles using three different modes are synthesized and evaluated for electrochemical properties towards non-enzymatic glucose biosensors. Copper oxide nanoparticles thus obtained are characterized ... -
Adsorption kinetic, equilibrium and thermodynamic studies of eosin-B onto anion exchange membrane
( Desalination Publications , 2019 , Article)In this research, batch adsorption of anionic dye Eosin-B (EB) onto anion exchange membrane (AEM) (BI) from aqueous solution has been investigated at room temperature. The effect of some operating conditions such as ... -
High and Ultra-high Performance Concretes: A Solution to Reinforced Concrete Durability under Harsh Climate of Arabian Gulf
( Qatar Univesrity Press , 2020 , Conference Paper)Reinforced concrete (RC) infrastructure in the Arabian Gulf region deteriorates under severe environmental conditions after only short service life. To overcome this problem, it is imperative to employ high-quality concretes ... -
Framework for Design under Uncertainty Including Inherent Safety, Environmental Assessment, and Economic Performance of Chemical Processes
( American Chemical Society , 2019 , Article)Typically, analysis and design of chemical processes is carried out considering average values of inherently uncertain data that pertain to key design and process variables that shape its performance. In this work, a ... -
Photocatalytic conversion of CO 2 and H 2 O to useful fuels by nanostructured composite catalysis
( Elsevier B.V. , 2019 , Article)Cu-TiO2 nano-catalysis were successfully prepared using sol-gel method and used for solar photo-reduction of CO2 in gas and liquid phase. Adding Cu to TiO2 matrix modify its crystalline structure, improved its optical ... -
Improving the Performance of Attached-Growth Wastewater Treatment Processes by Altering the Support Media Surface
( American Society of Civil Engineers (ASCE) , 2019 , Article)This study investigated the impact of altering the surface characteristics of support media used in attached-growth processes on the performance of biological wastewater treatment. The surface alteration was achieved through ... -
Utilization of residual organics of Labaneh whey for renewable energy generation through bioelectrochemical processes: Strategies for enhanced substrate conversion and energy generation
( Elsevier Ltd , 2019 , Article)Labaneh whey (LW)that is rich in residual organics was evaluated for bioelectricity generation using microbial fuel cell (MFC)in two different configurations namely single chamber (MFC-SC)and dual chamber (MFC-DC)MFCs. The ... -
Investigating the effects of mixing ionic liquids on their density, decomposition temperature, and gas absorption
( Institution of Chemical Engineers , 2019 , Article)In order to counter the detrimental effect of chemicals on the environment, the academic and industry research interest have shifted towards “green” solvents. Ionic liquids (ILs) are salt-like compounds that, with few ... -
Effect of gas templating of resorcinol-formaldehyde xerogels on characteristics and performances of subsequent activated carbons
( Elsevier Ltd , 2019 , Article)Gas-templated resorcinol formaldehyde-activated carbon xerogels (GT-RF-ACXs) were prepared from resorcinol-formaldehyde xerogels that were templated by infusing different gases (e.g., nitrogen, oxygen, methane, ethylene, ... -
Production of sensitive gas sensors using CuO/SnO2 nanoparticles
( Springer Verlag , 2019 , Article)Metal oxide nanoparticles, such as CuO and SnO2, are outstanding systems for H2S gas sensing in air. In this work, those nanoparticles were deposited with different mixing percentages on substrates to form percolating ... -
Industrial effluent treatment with immersed MBRs: Treatability and cost
( IWA Publishing , 2019 , Article)A comprehensive OPEX analysis for both municipal and industrial wastewaters has been conducted encompassing energy, critical component (membrane) replacement, chemicals consumption, waste disposal and labour. The analysis ... -
Multifunctional self-healing polymeric nanocomposite coatings for corrosion inhibition of steel
( Elsevier B.V. , 2019 , Article)The present work focuses on the self-healing and corrosion behavior of novel epoxy based coatings containing epoxy monomer (EM) and dodecylamine (DDA) as self-healing and corrosion inhibitor, respectively. The coating ... -
Role of TiO2 and carbon nanotubes on polyethylene, and effect of accelerated weathering on photo oxidation and mechanical properties
( John Wiley and Sons Ltd , 2019 , Article)In this work, LLDPE-based composite films were prepared by melt mixing followed by compression molding to investigate the role of titanium oxide nanoparticles (TONPs) and/or multiwalled carbon nanotubes (CNTs) on the ... -
Assessment of the algae-based biofertilizer influence on date palm (Phoenix dactylifera L.) cultivation
( Springer Netherlands , 2019 , Article)Date palm (Phoenix dactylifera L.) is the main fruit crop found in the arid and semi-arid regions of the world. It naturally adapts to the adverse environments of extreme heat and water scarcity and prevents further ... -
Developing ANN-Kriging hybrid model based on process parameters for prediction of mean residence time distribution in twin-screw wet granulation
( Elsevier B.V. , 2019 , Article)Artificial neural network (ANN) modelling is applied to predict the mean residence time of pharmaceutical formulation in a twin-screw granulator. Process parameters including feed flow rate, screw speed, and liquid to solid ...